The H isn't the letter H, but a range where the spark should be firing. T is the letter T, and stands for timing. The I should be right nevt to the T, and this is your timing mark. Confirm this by putting something in the spark plug hole as you SLOWLY turn the motor by hand. You can feel the piston come to TDC. TDC should coincide with the timing mark on the rotor. Once that is set, you can make sure your cam is where it should be and you're all set!
How to adjust timing chain Yamaha sr125
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Timing chain diagram or how to set it
On the 1994 Yamaha Breeze the valve clearance on the intake should be set at 0.006 inches. The valve clearance on the exhaust should be set at .011 inches.
Top speed of the Yamaha Breeze ATV is 40-50 mph.
You set cam timing on a Yamaha big bear 350 4x4, by opening up the bike chassis and looking for the cam timing levers. You can adjust it up or down until you have it set to how you want it.
how to adjust carburators on Yamaha fj 1200
250
It has electronic ignition the timing is adjusted by the cam and crank sensor and regulated by the ecm. In short you can't without messing with the timing belt and since it has an interference engine (the pistons can hit the valves) I would suggest it.
The lifters on a 1998 Breeze are not adjustable.
with a screwdriver